Bourns provides a recommended PCB layout and land pattern in their application note AN164, which can be found on their website. It's essential to follow these guidelines to ensure proper thermal management and to minimize parasitic inductance.
The voltage rating of the PV250K3225R2 is 250V. To select the correct voltage rating, consider the maximum voltage that will be applied across the varistor in your circuit. Ensure the varistor's voltage rating is higher than the maximum expected voltage to prevent damage or failure.
The PV250K3225R2 can handle surge currents up to 2500A (8/20μs waveform). However, it's essential to consider the specific surge current requirements of your application and ensure the varistor can handle the expected surge currents.
The PV250K3225R2 is designed to withstand multiple surges. However, the varistor's clamping voltage and response time may vary depending on the number and frequency of surges. Consult Bourns' application notes and technical support for specific guidance on multiple surge scenarios.
The PV250K3225R2 has a maximum operating temperature of 85°C. While it can operate in high-temperature environments, its performance and lifespan may be affected. Consult Bourns' application notes and technical support for specific guidance on high-temperature applications.
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